Answer:
The specific heat of aluminum is greater.
Explanation:
It lost the most heat.
If he wants to increase power, force must increase and decrease time.
Carbon isn’t because all the others on the list are naturally made apart from carbon which is man made because of all the pollution . X
C, electrons are negative, and most of the atom’s mass comes from the nucleus of the atom
Answer:
0.4
Explanation:
F-Fr=ma where F is applied force, Fr is friction, m is mass and a is acceleration.
Since the mass is moving with a constant velocity, there's no acceleration hence
where N is the weight of object and \mu is coefficient of kinetic friction.
the subject
Substituting F for 8 N and N for 20 N
Therefore, coefficient of kinetic friction is 0.4